Hoof-rectifying attachment for horseshoes.



P. A. DRESSER. HOOP RECTIFYING ATTACHMENT FOR HORSESHOES.

APPLICATION FILED APR. 9, 1913.

Patented Mar. 10, 191 1 R, m 6 mm fl a m f I ATTORNEY.

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FRANK A. DRESSER, 0F LYNDON CENTER, VERMONT. ASSIGNOR OF ONE-HALF TO l WILMER A. LYON, OF LYNDONVILLE, VERMONT.

Specification of Letters latent.

Patented Mar. 10, 1914.

Application filed April 9, 1913. Serial No. 759,866.

T 0 all whom, it may concern:

Be it known that I, FRANK A. Dnnssna, a citizen of the United States of America, and resident of Lyndon Center, in the county of Caledonia and State of Vermont, have in vented certain new and useful In'iprovements in Hoof-Rectifying Attachments for Horseshoes, of which the following is a full, clear, and exact description.

The object of this invention is to provide a device or appliance which is to have a supporting attachment on the rear portion of a horseshoe and by means of which a pressure hearing or crowding action may be exerted against the portion of the hoof known as the buttress, whereby deformities or distortion of the hoof tending to lameness and impairment of the horse may be remedied or at least very much reduced or relieved.

The invention is described in conjunction with the accompanying drawings and is set forth in the claims.

In the drawings: Figure 1 is a plan view showing the bottom of a horses foot, with a horseshoe thereon and with the device constituting the present invention, applied. upon the horseshoe and as in its position of opera tion or for corrective effect upon the hoof. Fig. 2 is a substantially transverse section as taken on line 2-2, Fig. 1. Fig. 3 is a perspective view showing the device as separated from its mounting or supporting connection on the horseshoe.

In the drawings, the horseshoe A is shown as in its place as usual on the bottom of the hoof, being secured as usual by horseshoe nails which, however, are so located as to leave the rearward portion of the shoe unattached with relation to the hoof.

B represents a member having the form and function of a bracket arm adapted to be supported by a rear portion of the horseshoe,to which it is rigidly and immovably confined,and to project inwardly and upwardly into the space within the horses hoof between the frog a; and the buttress y. The said bracket member B has at its extremity a substantially transverse screw threaded bore a, through which a threaded plug D is screw engaged. The said screw plug has at its outer end an integrally formed axially projecting stud Z). G represents a member for a bearing in an outward direction against the inner side of the buttress of the hoof, the same being circular or of any appropriate shape. The said buttress bearing member G is made with a central hole, through which said stud protrudes,- the outer end of the stud being upset to form a head or enlargement (Z for the retention of the buttress bearing member G on the stud-formed end of the screw plug, which is, by this constriudion, rendered rotatable relatively thereto.

The screw stud has a socket f of polygonal or equivalent form within its inner end for the reception of an appropriately formed engaging portion of a small wrench to be employed for the setting up of the screw plug within the tliircaded bore of the bracket or supporting member. The said bracket or supporting member is made with a rivet hole g at its shank end and it also has an angular lug or lip it so that when in place on and in proper relation to a rear miattached portion of the horseshoe, as represented in Fig. 1, it by the single rivet i, may be securely coufined to the horseshoe and by the lug h, in cngagen'ient against the inner edge of the horseshoe, steadied in its place and prevented from having any swinging movement.

When the device is to be used it is to be engaged with and riveted to the shoe before the latter is nailed to the hoof; and, of course, when the shoe is being applied to the hoof, the screw plug is considerably retracted, or inwardly withdrawn. Then by the use of the wrench the screw plug is turned so that the hcadlike enlargement or buttress bearing member is caused to be brought to a hard crowding bearing in an outward direction against the rear outer portion, or buttress, of the hoof. The screw plug and the bearing men'iber G will be outwardly advanced from time to time in accordance with the judgment oi. the one having the care of the horses foot, and in do grec suitably proportionate to the hoof expansion which may have been already ef- 'lected and which expansion is to be still further augmented. The head or buttress hearing member (,lnrelatirely to which the screw plug is rotatable, has its outer face concave or dished whereby an accommodating space is provided for the upset or headed portion of the stud, and the margin of the part G is formed with serrations y' so that the said part G when engaged with the surface of the hoof buttress will be without tendency to turn when, in the outwardly crowding action, the screw plug is rotated.

The devices or attachments may be made in rights and lefts, a pair thereof being simultaneously employed in some cases, but under the exercise of the invention, and where but one of the attachments is made use of, either rear lateral portion of the horses foot may be rectified without disturbing the rest of the foot.

I claim 1. In a device of the character described, a member adapted to be supported by a rear portion of a horse shoe and to project in wardly and upwardly into the space within the horses toot, provided at its extremity with a substantially transverse screw threaded bore, a threaded plug, screw engaged through said threaded bore and having, at its outer end, a hoof-buttress bearing head which is rotatable on the plug, said screw plug being constructed with means by which it may be rotated.

2. In a device of the character described, a bracket adapted to be supported by a rear portion of ahorse-shoe and to project inwardly and upwardly into the space within the horses foot, provided at its extremity with a substantially transverse screw threaded bore, a threaded plug, screw engaged through said threaded bore and having, at its outer end, an axially projecting stud and a centrally apertured hoof buttress bearing member, through which said stud protrudes,said stud having its outer end upset for the retention of such bearing member on the stud formed end of the threaded plug, which is rotatable relatively thereto, and the said stud having a wrench receiving socket within its inner end.

3. In a device of the character described,

a member adapted to be supported by a rear portion of a horseshoe and to project inwardly and upwardly into the space within the horses foot, provided at its horseshoe engaging portion with a rivet hole and having, adjacent thereto, an angular lip for engagement with the inner edge of the horseshoe, said member being provided at its inner extremity with a transverse screw threaded bore, a threaded plug screw engaged through said threaded bore and having at its outer end a hoof buttress bearing member, and means by which the screw plug may be rotated.

Signed by me at Springfield, Mass, in presence of two subscribing witnesses.

FRANK A. DRESSER. Witnesses G. It. DRISCOLL, WM. F. BELLOWS."

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington, D. C. 

